Winding-machine.



C. RYDEN.

WlNDING MACHINE.

APPLICATION FILED MAY 16, 1914.

Patented Nov. 21, 1916.

Nv W013, 09 i izw ATTOQNE v UNITE si r a-as PATENT @FFTQE.

ensus 'RYDEN, -015' CRANSTON, nnonn ISLAND, AssIGNoR, BY MESNil- ASSIGNMENTS, To UNIVERSAL WINDING COMPANY, or nos'roN, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

l Application filed May 16, 1914. Seria1No.83 9,0 37.

' To all whom it may concern 'Be it known that I, CLAEs ItYDnN, a citizen of the United States, res ding at Crans- I .ton, i'n'the countyofProvidence and State of Rhode Island,'have inventedcertain new and useful Improvements inWinding-Machines,"of which-the followingis a'speclfication.,,

Myinvention relatesjto winding machines and consists particularly "of an improved mechanism for applying pressure to traverse-guide which traversesthe mater al on the winding-spindle;

qTh'e objectof'my improvementis to provide [an adjustable pressure-device for ap- "plyingresistance to the outward movement.

of theguideaway from the winding-spindle asthewinding' increases in diameter, while allowing a relatively" free movement ofthe guidetoward the spindle.

My improved pressure-means is intended particularly for use on. machines employed in winding magnet ,orfother coils for electrical purposes. For'thispurposeit is necessary thatjthe guide whichcelfects the laying .of'the turnsofwirefon the coil be controlled veryj delicately and sensltlvely' to maintain it 'in'close relation to the surface on which the wire is being deposited, but without "contact'therewith, so that unnecessary friction'liable to cal-use abrasion'of the insulation ofthe wire is prevented.

The methodand means for carrying, out

the invention are fully described the fol ,lowing specification, illustrated b the accompanying drawings, in which hke refer- Referring firstito Fig. *1, Bdesi'gnates the winding-spindlebr' arbor on which the coil 0 is Wound and G is the guide which traverses the. wire or other material back and forth and deposits item the Spindle. The traverse-guide G may be of any usual form, but is preferably of the'type shown and described in my UnitedStates Letters Patent No. 1,133,186, granted March 23,1915. As

Specification ofj lletters Patent.

WINDINQMACHINE.

Famed Na. '21 191 here shown it consistsessentially of a pivoted arm 9 at the top of which is a bracket 9 carrying the. main guide-roll or wheel-g? and an auxiliary guiding pulley g The arm 9 is mounted at its lower end on-a bushing or. collar 9' which is free to turn and also to slide on a horizontal rod H. The rod H is supported on the main frame of the machine, not here shown, and

extends parallel with the winding-spindle B, thus serving -as a track for the guide G as the lattenis traversed longitudinally of the spindle. g-The-means for reciprocating,

the guide Gi'aloiig the rod- H are not here shown or described as they may be, of any usual arrangement and arenot essential to an understanding :of the present invention. On the end; of the rod H is mounted an .arm orbrace" K: which is held in place by a set-screw 70.1 On theinsi'de of the arm K is a flanged wheel or disk L which may be made integral with the arm, as here shown,

orconstructed' as a separate'piece and attached thereto in any suitable manner. Mounted free to turnon the rod H is a hub m abutting the side of the wheel K and carrying a radial 'arm M. At the upper end fof thearm' M is a hub or boss m, in which is secured'a horizontal rod N extending parallel with th e rjod H. The rod N is here shown as being secured'in the hub m by a set-Screw mflbutit mi'ghtbe driven into the bore of the hub, orsecured in any other suitable manner, The function of the rod "N isjtoaet asa' guideway or track for the arm'g of 'thetraverse-guideG whereby pressure maybe applied therefrom to the guide for. the purpose hereinbeforespecified. Re-

ferring, to Fig. 1, one' side of the rod N-is adapted-to bear-againstthe face of the arm 9; which is formedwith a hook or loop 9?,

adapted to partly encircle the rod. In this manner-the guide-arm g is prevented from swinging independently of the guiding-rod. N and arm M, but is free to move with the latter about the common jpivot H. The

swinging movement ofthe guide G is thus controlled through the arm M, and the means for applying resistance to its movement consists of a friction-device operating in. connection with the wheel or brake-disk L as next described.

Driven into a boss m on the side of the arm M is a stud or pin m'* to which is attached one end of a brake-band O. The band 0 is preferably constructed as a relatively thin strap of steel, or some other wear-resisting material and is adapted to encircle theperiphery of the disk L while beingv held in place by the side flanges Z, Z. Secured to the free end of the band is a spring S, the opposite endof which is hooked through a hole in the end of a stud T The stud T passes through a lug-m which projects from the side of the arm M and a nut t on the end of the stud abuts the side of the lug to hold the stud against the pull of the spring S. By turning the nut t the stud T can be adjusted in the lug m and in this way the anchorage point of the spring S can be shifted so as to vary its tension and regulate the degree of friction between the band 0 and the disk L.

Having now described the construction and arrangement of the parts of my new device its method of operation will next be explained: The wire w or other material from which the coil C is wound is delivered from the supply-spool in-such manner that it leads down to the traverse-guide G from above. As shown in Fig. 1, the wire 10.

passes partly around and under the auxiliary guiding-pulley g and thence partly around and over the main guide-wheel g to the winding-spindle B which rotates in the direction indicated by the arrow it. As the wire leads through the guide G there will be a tendency for itflto straighten out at w as it passes on to the coil C. This tends to throw the guide-wheel g slightly away from the surface of the coil and this tendency is taken advantage of to prevent the guide from rubbing against the windings. That is to say, it is desirable to maintain the guide a slight distance away from the surface of the coil C so that as 'it traverses back and forth it will not rub on the wire or other material to cause abrasion of its surface or injury to its insulating covering. At the same time it is most important that the guide G be maintained in close relation to the periphery of the coil throughout-the whole winding of the latter in order that the turns in the winding may be deposited precisely and accurately in exact relation to each other. Now, as the layers of winding are built up concentrically on the core or spindle B and the coil increases.

in diameter this growth will act to force the guide-wheel g away from the axis of the spindle while the arm 9 swings on its pivot H. During this rearward movement of the guide the tension on the wire as it delivers from the supply is liable to vary considerably, due to irregularities" of the winding on the supply-spool, and these variations will have a tendency to disturb the relation of the guide to the surface of the coil C. To

check this tendency and preventundue vibration or oscillation of the guide my improved pressure-device is designed to act through the arm M and rod N astfolloWS: At the start of the winding the tension of the spring S is adjusted to give a degree of friction between the brake-band O and disk L which is just suflicient to maintain the guide-wheel g in close proximity to the surface of the coil 0 without allowing the periphery of the wheel-to bear on the coil.

Now, as the coil G grows in diameter the 1, during the outward movement of the guide G, the direction of pull on the band 0 will be against the spring S. That is to say, the pulling-force of the band will act against the resilience of the spring and for this reason the resistance to the movement of the arm can be adjusted very delicately as required. On the other hand, movement of the arm M in the opposite direction tends to loosen the band 0 on the disk L to decrease the friction therebetween, and therefore the guide G is allowed to swing toward the axis ofthe windingspindle with a freer movement than when it is receding from the spindle. In this way the outward movement of the guide is resisted to the required degree to maintain the wheel 9 in close relation to the winding without pressure tending to cause it to rub against the surface of the coil.

Various devices for .applying resistance to the receding movement of the traverseguide have heretofore been employed in the art, but usually these have been arranged with springs or weights acting directly against the guide. It is'therefore believed that the present friction means is novel in its arrangement for, resisting the outward movement of the guide without applying pressure to force the guide in the opposite direction or toward the spindle. In other words, while the friction pressure-means acts to resist free outward movement of the traverse-guide, it does not operate, as in the case of the usual spring or weight-loaded arrangement, to force the guide against the winding. For this reason the deviceis of great advantage for use in winding magnet coils of fine enameled wire since it eliminates the usual rubbing action of the guide on the coating.

' tendency to carrylit back toward the spindle g a guide adapted to recede from the spindlesin My new device is also particularly well adapted for winding coils of irregular. shape. For some purposes it 1s advanta-' geous to wind the coils on polygonal cores so that they can be applied to similarly-shaped parts of various and sundry electrical apparatus. For instance, Fig. 3 shows a coil C wound on a rectangular center so that its periphery is of substantially the same contour. With my new pressure-means the traverse-guide is controlled in such manner that as the coil rotates during the winding process the guide is prevented from rebounding against the flat surfaces 0 on its periphery after it has been forced away by the high pointsc that is the corners of the.

coil. With the usual means for applying pressure to the guide the weight-loaded arms or direct-acting springs operate to carry the guide back againststhe surface of the winding after it has once been forced away by any irregularity on the periphery. To prevent this action it is necessary to provide dogging-means for restraining the guide from inward movement toward the axis of the winding-spindle after it has once been forced outwardly therefrom. In my present improved device the pressure-means acts as a resisting medium for controlling the outward movement of the guide without any and at the same time serves to provide a slight friction to hold the guide from too free backward movement. In effect, therefore, it is a combined pressure-means and dogging-device and hence is much more simple in construction and effective in operation.-

Various modifications might be made in the form and structure of the parts of my new device without departing from the spirit or'scope of the invention.

Therefore, without limiting myself togthe exact construction shown and described,

what I claim is 1. In a winding machine, the combination with the winding-spindle, of a traverseaccordance with the growth in diameterof the winding, and meansoperating to apply a constant degree of'resistance to the movement of the guide away from the spindle and a less degree of resistance to its movement toward the spindle.

2. In a friction pressure-device for winding machines, the combination. with the winding-spindle, of a trayerse-guideadapted to recede from the spindle as the winding increases in diameter, and means to apply a constant degree of resistance to the movement of the guide away from the spindle'and a less degree of resistance to its movement toward the spindle without tending to force the guide toward the spindle.

3. In a winding machine, the combina- 7. In a windin tion with a reciprocatable traverse-guide adapted to oscillate at substantially rightangles to its path of traverse, of means to resist the oscillating movement of the guide in one direction with respect to its traverse while applying a less resistance to the oscillating movementof the guide in the opposite direction.

4. In a winding machine,. the combination with a reciprocatable traverse-guide adapted to oscillate at substantially right angles to its direction of traverse, of friction means adaptedtoresist the oscillating movement of the guide in one direction while applying a less resistance to its movement in the opposite direction, and a spring connected to operate, said friction-means.

5. In awinding machine, the combination witha traverse-guide adapted to oscil,-

late at. substantially right-angles to its direction of traverse, of a brake-disk, a friction-band operating in connection with said disk, means operated from .the movement of the guide to effect a relative displacement between the disk and its brake-band, and

guide adapted to recede from the spindle with the growthin the winding, a brakedisk, a friction-band engaging said disk,

means operated by the guide to cause a relative movementfbetween the disk and the band as the guide recedes from the winding, and a spring engaging one end of the band to apply friction between the band and the brake-disk.

8. In a winding machine, the combination with a pivoted traverse-guide, of a brake-disk arrange concentric with the axis of the guide, a friction band engaging the periphery of the disk, means secured to one end of the band and adapted to be moved by'the movement of the guide, and a spring connecting said" means with the opposite end of the band.

'9. In a "winding machine, the combination with a pivoted traverse-guide, of a brake-disk arranged concentric with the axis on which the guide swings, an,- arm pivoted on the axis of the disk, means connecting said arm to be moved by and with the guide, a'brake-band secured at one end to the arm and engaging the periphery of the disk, and a spring connecting the opposite end of the hand With the arm.

10. In a winding machine, the combination with a pivoted traverse-guide, of a brake-disk mounted concentric with the axis on which the guide swings a frictionhand engaging the periphery of the disk, means connecting one end of the hand to move the latter on the disk by and Withthe movement of'the guide, and a spring for resiliently connecting the opposite end of the band with its operating means.

11. In a winding machine, the combination with a pivoted traverse-guide, of a brake-disk mounted concentric with the axis on which the guide swings, a fricti0nband engaging the periphery of the disk, means for connecting one end of'the band to be moved positively by and with the swinging movement of the guide, a spring connecting the opposite end of the band to be moved with the guide, and means to adjust the tension of the spring. 7

12. In a Winding machine, the combination with a pivoted traverse-guide, of an arm pivoted on the axis of the guide, means connecting said arm and guide to swing together on'a common axis while allowing reciprocation of the guide, a brake-disk mounted concentric with the axis of the guide and arm, a friction-band secured at one end to the arm and engaging the periphery of the disk, a spring connecting the opposite end of the band to the arm, and means to vary the point of connection of. the spring on the arm.

In testimony whereof I affix my signature in presence of two witnesses.

CLAES RYDEN.

Witnesses ARTHUR A. ARMINGTON, HERBERT K. ALLARD. 

